/**
 * Copyright 1999-2014 dangdang.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.redis.proxy.client.io;

import com.redis.proxy.client.factory.KryoFactory;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.io.Output;
import java.io.ByteArrayOutputStream;

import java.io.IOException;

/**
 *
 * @author zhanggaofeng
 */
public class KryoObjectOutput {

        private Kryo kryo = KryoFactory.getDefaultFactory().getKryo();
        private final Output output;

        public KryoObjectOutput() {
                output = new Output(new ByteArrayOutputStream());
        }

        public void writeBool(boolean v) throws IOException {
                output.writeBoolean(v);
        }

        public void writeByte(byte v) throws IOException {
                output.writeByte(v);
        }

        public void writeShort(short v) throws IOException {
                output.writeShort(v);
        }

        public void writeInt(int v) throws IOException {
                output.writeInt(v);
        }

        public void writeLong(long v) throws IOException {
                output.writeLong(v);
        }

        public void writeFloat(float v) throws IOException {
                output.writeFloat(v);
        }

        public void writeDouble(double v) throws IOException {
                output.writeDouble(v);
        }

        public void writeBytes(byte[] v) throws IOException {
                if (v == null) {
                        output.writeInt(-1);
                } else {
                        writeBytes(v, 0, v.length);
                }
        }

        public void writeBytes(byte[] v, int off, int len) throws IOException {
                if (v == null) {
                        output.writeInt(-1);
                } else {
                        output.writeInt(len);
                        output.write(v, off, len);
                }
        }

        public void writeUTF(String v) throws IOException {
                output.writeString(v);
        }

        public void writeObject(Object v) throws IOException {
                kryo.writeClassAndObject(output, v);
        }

        public byte[] flushBuffer() throws IOException {
                output.flush();
                return output.getBuffer();
        }

        public void cleanup() {
                KryoFactory.getDefaultFactory().returnKryo(kryo);
                kryo = null;
        }
}
